Title

Authors

Files

Faculty Sponsor

Dr. Jay Jackson

Department/Program

Department of Psychology

University Affiliation

Indiana University – Purdue University Fort Wayne

Abstract

Aggression may be defined as any behavior intended to hurt another person. Researchers have recently emphasized the importance of integrating personality variables into social psychological models of aggression (Anderson & Bushman, 2002; Bettencourt, et al., 2006; Caprara, et al., 2013). This study was designed to examine the role of personality, with a particular focus on the Dark Triad (narcissism, psychopathy, and Machiavellianism), in determining aggressive behavior under provoked and unprovoked experimental conditions. It was hypothesized that individuals with dark personalities would react more aggressively in response to provocation versus no provocation, and this relationship would be mediated by anger.

Participants (N=117) completed measures of personality and exchanged essays with an online partner. They then received insulting, neutral, or positive feedback from their partner before completing the positive-and-negative-affect scale. Finally, to assess aggression, participants played a “competitive reaction time game” with their partner that involved the administration of noise blasts that could range from 1 (extremely mild) to 10 (extremely harsh).

Consistent with predictions, individuals with dark personalities reacted more aggressively when provoked, and this relationship was mediated by anger. This study has several limitations, including a relative lack of ecological validity, and the fact that we have not yet replicated the findings. The findings are, however, consistent with studies showing a similar pattern among people with inflated levels of self-esteem (e.g., Baumeister, et al., 2000). These findings have important implications, including the need to integrate personality into models of aggression.